中小机场航线网络结构及连接特性分析

Analysis of Airline Network Structure and Connectivity of Small and Medium-sized Airports

以中小机场航线网络为研究对象,基于2019年夏秋航季航班计划时刻表数据,通过复杂网络指标分析中小机场及其航线的网络结构与分布特征,并从邻接机场类型、介数等视角,分析了四类中小机场的偏好连接特点。结果表明:中小机场的平均度值为大型机场的1/6,机场度值对航距的影响较客运量更大,高介数的机场并不对应为高客运量或远航距特征,簇系数高于0.6的中小机场客运量与航距加权分布表现出一定的集聚性;经客运量或航距加权的低介数航线网络聚集性较强,东部沿海地区较少有在客运量、航距加权下的高介数特征航线;中小机场与大型机场的连接规模远高于中小机场之间的相互连接规模,低介数的中小机场倾向于选择介数较高的中小机场连接。

Taking the airline network of small and medium-sized airports as the research object,the network structure and distribution characteristics of small and medium-sized airports and their air routes were analyzed by using complex network indicators based on the data from flight schedule in summer-autumn season of 2019.The characteristics of preferred connectivity of four types of the objects were also analyzed from the perspectives such as adjacent airport types and betweenness.The results show as follows.The average degree of small and medium-sized airports is 1/6 of that of large airports,and the influence of airport degree value on the distance is greater than that of passenger traffic volume.Airports with higher betweenness do not always have more passengers or longer distance of air routes.There shows certain agglomeration between the passenger volume and weighted distribution of route distance of small and medium-sized airports with cluster coefficient higher than 0.6.Route network weighted by passenger volume or route distance with low betweenness has strong aggregation,while the routes in eastern coastal areas lack of high betweenness routes under the weight of passenger volume and distance.The connection scale between small and medium-sized airports and large airports is much higher than the scale of interconnection between small and medium-sized airports while small and medium-sized airports with low betweenness tend to connect small and medium-sized airports with high betweenness.